Snowman = (1 small + 1 big) balloon

The kids as well as adults had a lot of fun with this during the BBQ earlier on. Anyone know what it is called?
I only recall myself buying lots of these to play with when I'm very young, it costs 5cents per tube then. I loved to blow 2 balloons (one bigger, the other smaller) and stick them together to form a snowman ! ha!